Best Free Frequency Detector Apps

HzDetect Music Frequency Tuner

Find the frequency of any song

Free

Instantly discover the tuning frequency of music around you. This app uses song recognition and advanced analysis to reveal if a track is tuned to standard concert pitch or other frequencies, offering a new dimension to your listening experience.

Frequency: Sound Generator

by Lucija Jaksic

Free

Generate various sound waves, including sine, square, sawtooth, and triangle, with adjustable frequencies from 1Hz to 22000Hz. Visually observe animated sound waves and control volume. Useful for testing hearing, speakers, instruments, and even cleaning water from speakers.

Frequency Detector Tool

Find the musical key of any Hz

Free

Instantly analyze musical keys from any frequency in Hertz. It displays the corresponding musical note, cents deviation, and whether it's in key with your selected musical scale. Features vocal context notes and a full frequency chart for EQ guidance.

Frequency Analyzer

Sound Decibel Meter, Spectroid

Free

Transform your device into a professional audio analysis tool with advanced FFT analysis, SPL monitoring, and detailed visualizations. Record, analyze, and export audio data with precision calibration and multiple weighting filters.

Device Detector: Wifi Analyzer

Find Hidden Devices On Network

Free

Scan and analyze all devices connected to your local network. This essential tool helps protect your privacy by identifying everything on your network. Regular updates ensure an improved user experience.

VisiWave

See the frequencies around you

Free

Visualize sound waves in real-time by detecting and displaying their frequencies in Hertz. Experience an augmented reality view of the audio environment around you.

EMF Detector-Radiation Reader

iemf,frequency detector

Free

Transform your iPhone into an EMF detector to monitor electromagnetic fields. Identify radiation levels in various environments to assess safety at home, work, or in public spaces. Gain insights to make informed decisions about your surroundings.

RF Signal Detector

RF Signal Detector Analyzer

Free

This application offers real-time radio frequency signal detection and analysis. It monitors signal strength, analyzes frequency bands, and identifies interference sources. The tool provides historical data and network optimization insights for a better wireless experience.

Camera Finder - Device Scanner

Scan Hidden Devices & Signals

Free

This app helps you understand your surroundings by scanning for nearby wireless devices and analyzing signals. It offers tools to discover connections, test network performance, and inspect your environment using your smartphone's sensors.

Frequency Generator: Hz Tones

Hz Tones, Sonic Sound, Healing

Free

Generate precise audio tones for sleep, focus, and relaxation. Explore a wide frequency range, shape waveforms, and access presets like Solfeggio frequencies. An optional Pro upgrade unlocks all features.

Subwoofer Frequency Test

by Leafgreen

Free

Test the low-frequency capabilities of your speakers with precise sound frequencies. Pinpoint the lowest bass your audio system can produce, from 15Hz to 100Hz, to ensure you're not missing out on deep sounds in your music.